Stove.



l. BREWER# STOVE.

APPLICATION FILED SEPT. 11. ma.

Patented May 18, 191.5.

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Attorneys@ narran erases; rarnnr caries.

JACOB BREWER, OF 'g-AZLETON, PENNSYLVANIA.

STOVE.

linearen.

Application led eptember 17, i913.

and useful Stove, of which the following is a specication.

The device forming the subject matter of this application is adapted to be employed as an adjunct to a heater of any sort, for the purpose of heating air, by means of the escaping products of combustion, the air, after having been heated, being returned to the combustion space of the heater or to the ash pit of the heater, as may be deemed expedient.

t is within the scope of the invention to improve generally and to enhance the utility of, devices of that type to Which the present invention appertains.

With the above and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that' changes in the precise embodiment of the invention herein disclosed can be made within the scope of what is claimed without departing from the spirit of the invention.

ln thedrawingz-Figure 1 'shows the invention in vertical section, applied to a cook stove; Fig. 2 is a vertical section showing the invention applied to an upright heater of the furnace or parlor stove type; Fig. 3 is a vertical section showing a modified form of the invention adapted to be installed vin stoves which are already in use. f

The device herein disclosed is adapted to be employed in connection with a heater of any sort, and the term heater is to be construed to mean any structure from which products of combustion escape.

In the present instance, and by way of illustration, the. heater in Fig. 1 has been shown in the form of a cook stove 1 including an oven 2 and grate3,lthe combustion chamber being indicated at i and the ash pit at 5, the outlet pipe for the combustion chamber being shown at 6 and the i'lue or stove pipe at 7.

In Fig. 2. the heater 8 has been shown as of the upright form, and may be a furnace or parlor stove so called. The tire pot is shown at 9 and the grate at 10, the outlet pipe for the products of combustion being Bpecication of Letters Patent.

Patented May i8, i915.

Serial No. 790,276.

indicated at 11. The space 12 Within the fire pot constitutes a combustion chamber and the ash. pit is shown at 1i. The iue, chimney or stove pipe is indicated at 15.

in Fig. 3, the heaterl is shown in the form of a cook stove 16 having an oven 17 and a grate 18, the combustion chamber being indicated at 19 and the ash pit at 20, the outlet pipe for the products of combustion being shown at 21 and the flue or stove pipe being shown at 22.

ln carrying out the invention there is provided a drum 23 provided at its upper end With a collar 24 equipped with a damper 24'. rThe collar 24C receives the flue 7 in Fig. 1, the flue 15 in Fig. 2. and the flue 22 in Fig. 3. In all iigures of the drawing, a sinuous flue 26 is disposed within the drum 23, and itwill be understood that the flue 26 may be placed in any desired "manner within the drum. 'ln all figures of the drawing, one end of the iue 26 is equipped with a funnel shaped air inlet 27, opening through the wall of the drum As shown in Figs. 1 and 3, the drum 23 terrninates at its lower end in a collar 25 coperating with the outlet pipe 6 in Fig. 1 and with the outlet pipe 21 in Fig. 3.

Referring particularly to Fig. l1, one end of the iue 26 is extended through the lower end of the drum 23 and is carried downwardly as indicated at 28, to the rear of the 'oven 2, the flue, thence, being carried beneath the oven 2 as shown at 30. and being extended vertically in front of the oven 2 and beneath the grate 3 in the ash pit 5 as indicated at 29, the portion 29 of the lue being extended above the grate 3 and into the combustion chamber i `to form a branch 29a. The portion 29 of the flue which lies below the grate 3' is equipped with an opening 31, located below the grate. and thisr opening 31 is controlled by a dauiper 32. The grate acts as a stop for the damper 32 when the latter is swung to an open position. The damperA 32, therefore. is always held above `the opening 31 and ashes from the grate 3 cannot drop into the iiue or conduit through the opening 31. ln the upper portion of the branch 20a or in, any other part thereof is disposed a dam-l Fig. 2, is extended outside of the drum 23 as the pipe 35 being bifurcated to form branches 36 and 37, the branch 36 en` tering the Hre pot 9 and the branch 37 entering the ash pit 14. In the branch 37 is disposed a damper 38 and a damper 39 operates in the branch 36.

Fig. 3 illustrates the invention as conP shown at 35.

structed and applied to cook stoves or the like which are already in use. Under such circumstances, the terminal convolution of the Hue 26 iscarried horizontally as indicated at 40, the Apipe being offset as indicated at 50, so that the portion 40 lies to one side of the stove and outside of the wall thereof! The portion 40 of the Hue is bifurcated to form branches 41 and 42, the branch 42 communicating with the 'ash pit 20 and the branch 41 communicating with the combustion chamber 19. Disposed at any' point in the branch 42 is a damper 43 and another damper 44 operates in the branch 41.

In practical operation, referring to Fig. l, the fuel is consumed upon the grate 3, las usual, the products of combustion passing through the outlet 6, the collar 25, the drum 23, Athe collar 24 and the Hue 7 the outward passage of the products of combustion being regulated by manipulating the damper 24. Air will enter the Hue 26 through the inlet 27 and will be heated by the products of combustion as the same pass through the drum 23, The draft through heater 1 and through the drum 23 will cause the heated air within the Hue 26 to be drawn downwardly through the portions 28, 30 and 29 of the Hue. lrVhen it is desired to increase the draft, the damper 33 is closed and the damper 32 is open. Thereupon, the air traversing the Hue 26 28-30-29 will be delivered below the grate 3. By closing the damper 32 and by opening the damper the heated air will be delivered into the combustion space 4, above the grate 3.

By -the operation above described, it will be seen that waste products of combustion passing out of the stove pipe will be made eHicient to heat air which, after being heated will bedelivered within the contour of the heater eitherabove o'r below the grate 3, as may be desired.

Referring to Fig. 2, the operation of the structure remains substantially as above described. By closing the damper 39` and openinv the damper 38, heated air will be delivered below the gratelO. By closing the damper 38 and opening the damper 39, the heated air will be delivered into the combustion chamber 12.

Referring to Fig. 3, by closing the damper l an outlet communicating conduit being open air will be delivered 'below theY grate 18 whereas by closing the damper 43 and open-` ends in view and will operate to abstract from the outgoing products of combustion, heat otherwise wasted, and to render the same ecient within the contour of the heater.

Having thus described the invention, what is claimed is:- v v s 1. In a device of the class described, a heater having a grate defining an ash-pit and a combustion space, the heater having with thefcombustion space; a drum resting on the heater and surrounding the outlet, the drum having an opening 1n drum and surrounding the opening therein; a pipe curved within the drum and havin its ends extended through the wall ofthe drum at the bottom of the drum, one end of the pipe constituting an air inlet and being located close to the top of the heater and directly above the top ofthe heater whereby the hot air rising from the' top of the heater may -be drawn into the air inlet, the other end of the pipe having Ja pair of outlets, one of which outlets communicates with the combustion space of the heater, the other of cate with the space below the grate g, and a neans `for individually controlling the outets.

2. In a device of the class described, a heater having a grate outlet Hue for the (products of combustion; a casing interpose passing through the casing, one end of the to the atmosphere and the other end of the heater below the grate and being upwardly extended above the grate, the conduit having an opening located below the. grate; and a damper controlling the opening; the grate acting as a stop for the damper when the latter 4is moved yto an vopen position, whereby to maintain the damper above the opening and to prevent ashes from falling from the grate into the conduit through the opening. Y

In testimony that I claim the foregoing as my own, I have hereto axed'my signature inthe presence of two Witnesses.

JACOB BREWER. Witnesses:

WM. H. Sonoma, JOHN ScHUrrER.

in the Hue; a conduit` its top; a Hue supported on the which outlets commumand provided with an conduit passing into the 

